//BMI

#include <stdio.h>
int main(){
	float high = 0;
	float weight = 0;
	float	BMI = 0;
	printf("输入身高和体重：");
	scanf("%f%f",&high,&weight);
	BMI = weight / (high * high);
	if(BMI <= 18.3){
		printf("偏轻\n");
	} else if(BMI >= 23.9){
		printf("超重\n");
	} else {
		printf("适中\n");
	}

	return 0;
}
